Is the Car Stopped or Moving When the Handbrake is Released?
1 Answers
When the handbrake is released, the vehicle moves; the handbrake needs to be engaged when parking. Commonly referred to as "releasing the handbrake" means lowering the handbrake. For small cars, some handbrakes are located behind the transmission, connected to the driveshaft where there is a brake disc, similar to a disc brake (though drum types also exist). The pulling force is transmitted via a steel cable to achieve parking braking. Additional Information: Handbrake: The professional term for the handbrake is auxiliary brake. Unlike the principle of the main brake, it uses a steel cable connected to the rear brake shoes to brake the vehicle. Long-term use of the handbrake can cause plastic deformation of the steel cable. Since this deformation is irreversible, prolonged use will reduce effectiveness, and the handbrake's travel will increase. Handbrake Principle: After pulling the handbrake, it uses a hydraulic auxiliary cylinder to push the vehicle's hydraulic master cylinder, which then drives an air valve (designed this way to avoid hearing air noises in the cabin). Once the air valve is activated, it brakes the driveshaft. The handbrake only brakes the driveshaft. After completing the driveshaft braking, ordinary trucks use the handbrake lever's steel cable for long-term braking, while higher-end trucks, such as Volvo, use electronic control.